- From: Chris Ridd <chris.ridd@messagingdirect.com>
- Date: Thu, 7 Dec 2000 06:04:13 -0500 (EST)
- To: www-html@w3.org
Christian Smith <csmith@barebones.com> wrote: > On Wednesday, December 6, 2000 at 19:30, david.woolley@bts.co.uk (Dave J > Woolley) wrote: > >> [DJW:] No. >> >> Naked &'s and <'s are not permitted in attribute >> values, and XML directives are definitely not >> recognized in that context. >> >> See >> <http://www.w3.org/TR/2000/REC-xml-20001006#sec-common-syn>, >> production number [10]. >> >> Whilst it is just conceivable that some version of XHTML >> has extended ALT to allow it to include XML text for >> recursive expansion, such a change would not be understood >> by a general validator, because it requires knowledge beyond >> the content of the DTD, and would not be backwards compatible, >> because of the need to double escape < when one doesn't >> want interpreted as the start of a tag. > > Ok, but how does this jive with the definition of CDATA sections: > > http://www.w3.org/TR/2000/REC-xml-20001006#sec-cdata-sect > > 2.7 CDATA Sections > > [Definition:] CDATA sections may occur anywhere > character data may occur; they are used to escape > blocks of text containing characters which would > otherwise be recognized as markup. CDATA sections > begin with the string "<![CDATA[" and end with the > string "]]>": > > > I realize that using this in an XHTML document would create something > not supported by the validator or by a current HTML renderer, but is it > valid XML to use a CDATA section in an attribute value if that attribute > is defined as having a content model of CDATA? > > > -- > Christian Smith | csmith@barebones.com | http://web.barebones.com > > He who dies with the most friends... Is still dead! > Joe English has a useful document entitled "CDATA Confusion", which may be relevant here. http://www.flightlab.com/~joe/sgml/cdata.html I think section 2 provides the answer. Cheers, Chris
Received on Thursday, 7 December 2000 06:34:06 UTC